Metal-working furnace



l 1,497,695 o. s.A PULLIAM v METAL WORKING 'FURNACE ginal Filed Feb. 3,1922 June l? R924.

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.Patented lune 17, 1924i.,

OSWALIID S. PULLIAIVI, OF 'NEW YORK, N. Y., ASSIGNOR T0 HXBBARD PROCESSCOR PORTION, OF NEW YORK, N. Y., A CORFORATON 0F NEW JERSEY.

METAL-W0 RKING FURNACE.

Application filed February 3, 1922, Serial No, 533,894, Renewed January16, 1924i.`

To alito/1 om it may concern p Be it known that l, OswALn S. PULLIAM, acitizen of the United Stateaand a resident of the city of New York,borough of Manhattan, in the county and State of New York, have inventeda new and Improved MetalVorking Furnace, of which the following is afull, clear, and enact description.

The present invention. relates to new and useful improvements in 'metalworking furnaces, and it pertains more particularly to furnaces for usein the manufacture of wrought iron.

It is one of the objects of the invention to provide a furnace in whicha batch may be thoroughly mixed.

lit is a further object of the invention to provide a furnace in whichthe balling operation may be carried out without the necessity ofchanging the batch from one furnace to another, p

It is a further object of the invention to provide a furnace which iscapable of movement in more' than one direction in order to properly mixthe batch and carryiout the complete operation.

, With the above and other objects in view,

" reference is had to the accompanying draw;

ings, in Which- Figure l is a vertical sectional vievv of a furnaceconstructed in accordance with the present invention;

Fig. 2 is a vertical sectional view taken on the line 2 2 of Fig. 1; l

Fig. 3 is a vertical sectional View taken on the line 3-3 of Fig. 1, and

Fig. i is a detail vertical sectional View of a modified form of theinvention.

Referring more particularly. to the drawings, the reference character 5designates a suitable support or standard, the upper end of which isprovided with a bearing 6. The reference character 7 designates thefurnace shell, and said shell is lined-With brick or other suitablerefractory material 8. rThis fire-brick 8 is laid in courses 9, andsaidcourses are spaced by courses 10 Ito provide a pluralityof channels 11,and said channels eing separated by ridges or the like 12.

Secured to the furnace in any desired man'- ner, is a tubular extension13, and said tubular extension 13 has a substantially s herieal shapedbearing member 14 adapte to be received Within the bearing' 6. rTheenten vsion 13 is lined with fire-brick or refractory material l5 inorder that heat may be introduced to the furnace as desired. Secured tothe tubular extension 13 is an internal gear 1S, and meshing with saidinternal gear 18 isa gear 19 carried by a shaft 20. This gear 19 isdisposed eccentrically upon the shaft 2O as shown more clearly in Fig.3. Also secured to the extension 13` is a gear 21, and meshing with saidgear 21 is a gear 22 carried by a shaft- 23. These two shafts 20 and 23are connected with suitable driving mechanism in such a manner thateither may be operated independently of the other.

The furnace 7 is provided with a plurality of doors 25, and said doorsare arranged one within each of the channels 11. between the ridges 12.

This form of the invention operates in the following manner:

The furnace is charged through the doors 25, after which the doors areclosed. rllhe shaft 20 is now driven and the furnace is rotated. Throughthe instrumentality of the eccentric gear 19, it is apparent that thefurnace willbe given a gyratory motion in addition to the rotary motionwhich it receives since as the gear 19 rotates, the bearing 14; formedvon the extension. 13 of the furnace will be rocked in the bearing 6 ina vertical line. Owing to its operation.y the charge of molten metalwithin the furnace is caused to travel circumfcrentially of the furnace,and, at the same time, is caused to cross over the ridges 12 in a.zigzag manner as the furnace is gyrated, thus causing a thorough mixingof the batch. After the batch has been thoroughly mixed and it isdesired to ball the same, the furnace is brought to the true horizontalposition shown in Fig. 1, after which the driving mechanism of the shaft20 is disconnected. After this has been done, the shaft 23 is connectedtothe driving mechanism and the furnace is rotated or oscillated inorder that the-portion of the charge carried in each of the channels 11may be balled. Observation ofthe several periods of the process is hadthrough a sight opening preferably in one end of the furnace.

To permit of the escape of the products of combustion from thefurnace,the covering of the si ht opening may be moved to the posi- ,tion s ownin dotted iines in Fig.

By this construction it is apparent that the present invention providesa new and im-4 proved form of furnace in which the mixing p mounted onsaid support, means for impartof the batch and the balling thereof maybe carried out, and, at the same time,a furnace is constructed in whicha plurality ofl balls mty be formed.

n the modified form of the invention, the furnace comprises a shell 30lined With-rebrick 3l, in such a ,manner that two channels only yareformed with one intermediate ribl 33. This type of furnace is operatedin the same manner as the type above described, and has the extension 34lined with firebrick 35 carried thereby by means of which the furnace isrotated.

lVhat is'claimed is:

l. In a furnace of the type described, a

furnace chamber, means or imparting a gyratory movement to said furnacechamber, and means for rotating or oscillating said furnaceindependently of the gyratory movement thereof. y

2. In a furnace of the type described, a suitable support, a furnacechamber ing'a gyratory movement to said furnace chamber,`and separateand independently operated means for rotating or oscillatin said furnacechamber, independently of the gyratory movement thereof.

3.4Inva 'furnace' of the class described, a furnace chamber, a pluralityof channels formed in said chamber, said channels being separated byintermediate ribs, and means for imparting a gyratory movement to saidchamber to cause the material therein tc flow over the ribsl to thevarious channels.

4. In a furnace of the class described, a chamber, a plurality of spaces'or channels formed on the interior of said chamber, and means forimparting a gyratory movement to said chamber to cause the materialWithin the chamber to pass from one of said` channels to theotherchannels over the ridges forming said channels.

5. In a furnace of the type described, a furnace chamber, means foroperating the chamber'in one direction to cause the material Within thechamber to move from one end of the chamber to the other at an angle tothe axis of movement of the chamber, land separate means for imparting atrue rotary or oscillatory movement to the furnace to cause the materialtherein` to move at substantially right angles to the axis of rotationlof the furnace.V

OSWALD S. PULLIAM.

